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Towards the application of electrokinetic remediation for nuclear site decommissioning

Towards the application of electrokinetic remediation for nuclear site decommissioning
Towards the application of electrokinetic remediation for nuclear site decommissioning
Contamination encountered on nuclear sites includes radionuclides as well as a range of non-radioactive co-contaminants, often in low-permeability substrates such as concretes or clays. However, many commercial remediation techniques are ineffective in these substrates. By contrast, electrokinetic remediation (EKR), where an electric current is applied to remove contaminants from the treated media, retains high removal efficiencies in low permeability substrates. Here, we evaluate recent developments in EKR for the removal of radionuclides in contaminated substrates, including caesium, uranium and others, and the current benefits and limitations of this technology. Further, we assess the present state of EKR for nuclear site applications using real-world examples, and outline key areas for future application.
Electrokinetic remediation, Nuclear decommissioning, Radioactive contamination, Sustainable remediation
0304-3894
Purkis, Jamie M.
17c76efb-2aa2-429e-92b3-5a21de7b02a5
Warwick, Phillip
f2675d83-eee2-40c5-b53d-fbe437f401ef
Graham, James
092bf466-d817-4449-98c5-a27e8f1ce6d5
Hemming, Shaun Daniel
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Cundy, Andy
994fdc96-2dce-40f4-b74b-dc638286eb08
Purkis, Jamie M.
17c76efb-2aa2-429e-92b3-5a21de7b02a5
Warwick, Phillip
f2675d83-eee2-40c5-b53d-fbe437f401ef
Graham, James
092bf466-d817-4449-98c5-a27e8f1ce6d5
Hemming, Shaun Daniel
e64b1983-cecb-4cce-9b64-23219c648ab4
Cundy, Andy
994fdc96-2dce-40f4-b74b-dc638286eb08

Purkis, Jamie M., Warwick, Phillip, Graham, James, Hemming, Shaun Daniel and Cundy, Andy (2021) Towards the application of electrokinetic remediation for nuclear site decommissioning. Journal of Hazardous Materials, 413, [125274]. (doi:10.1016/j.jhazmat.2021.125274).

Record type: Review

Abstract

Contamination encountered on nuclear sites includes radionuclides as well as a range of non-radioactive co-contaminants, often in low-permeability substrates such as concretes or clays. However, many commercial remediation techniques are ineffective in these substrates. By contrast, electrokinetic remediation (EKR), where an electric current is applied to remove contaminants from the treated media, retains high removal efficiencies in low permeability substrates. Here, we evaluate recent developments in EKR for the removal of radionuclides in contaminated substrates, including caesium, uranium and others, and the current benefits and limitations of this technology. Further, we assess the present state of EKR for nuclear site applications using real-world examples, and outline key areas for future application.

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EKR Part 1 Review Revised v4 withouth highlights - Accepted Manuscript
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More information

Accepted/In Press date: 27 January 2021
e-pub ahead of print date: 1 February 2021
Published date: 5 July 2021
Additional Information: Funding Information: The authors acknowledge funding from the TRANSCEND (TRANsformative SCience and Engineering for Nuclear Decommissioning) consortium (EPSRC grant number EP/S01019X/1 ), as well as the original authors of reports examining EKR at the Sellafield site under BNFL, Nexia Solutions, and the NNL and NDA. PW and AC acknowledge support from the EPSRC / National Nuclear User Facility Phase 2 programme ( EP/T011548/1 , NNUF-EXACT ). The authors further thank the NDA, NNL and predecessors for kindly providing access to these reports. For redrawing and adapting many of the figures in this paper from their original source, the authors also thank Mrs. Kate Davis (National Oceanography Centre, Southampton, UK). Publisher Copyright: © 2021 Elsevier B.V. Copyright: Copyright 2021 Elsevier B.V., All rights reserved.
Keywords: Electrokinetic remediation, Nuclear decommissioning, Radioactive contamination, Sustainable remediation

Identifiers

Local EPrints ID: 446885
URI: http://eprints.soton.ac.uk/id/eprint/446885
ISSN: 0304-3894
PURE UUID: b32a5c3c-e306-4e4d-bca8-dde5302191b2
ORCID for Jamie M. Purkis: ORCID iD orcid.org/0000-0002-6387-1220
ORCID for Shaun Daniel Hemming: ORCID iD orcid.org/0000-0001-5826-8710
ORCID for Andy Cundy: ORCID iD orcid.org/0000-0003-4368-2569

Catalogue record

Date deposited: 25 Feb 2021 17:30
Last modified: 26 Nov 2021 03:22

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Contributors

Author: Jamie M. Purkis ORCID iD
Author: Phillip Warwick
Author: James Graham
Author: Andy Cundy ORCID iD

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